Agilent Technologies N5183A MXG, N5181A/82A Generating a Swept Signal Using Visa and Visual C++

Programming Examples

GPIB Programming Interface Examples

{

ViSession defaultRM, vi;// Declares variables of type ViSession // vi establishes instrument communication

ViStatus viStatus = 0;// Declares a variable of type ViStatus // for GPIB verifications

viStatus=viOpenDefaultRM(&defaultRM); // Initialize VISA session

//Open session to GPIB device at address 19 viStatus=viOpen(defaultRM, "GPIB::19::INSTR", VI_NULL, VI_NULL, &vi); if(viStatus){// If problems, then prompt user

printf("Could not open ViSession!\n"); printf("Check instruments and connections\n"); printf("\n");

exit(0);}

viClear(vi);	// Clears the	signal generator
viPrintf(vi, "*RST\n");	// Resets the	signal generator
viPrintf(vi, "*CLS\n");	// Clears the	status byte register
viPrintf(vi, "FREQ:MODE LIST\n");	// Sets the sig gen freq mode to list
viPrintf(vi, "LIST:TYPE STEP\n");	// Sets sig gen LIST type to step
viPrintf(vi, "FREQ:STAR 500 MHz\n");	// Sets start	frequency
viPrintf(vi, "FREQ:STOP 800 MHz\n");	// Sets stop frequency
viPrintf(vi, "SWE:POIN 10\n");	// Sets number of steps (30 mHz/step)
viPrintf(vi, "SWE:DWEL .5 S\n");	// Sets dwell	time to 500 ms/step
viPrintf(vi, "POW:AMPL -5 dBm\n");	// Sets the power level for -5 dBm
viPrintf(vi, "OUTP:STAT ON\n");	// Turns RF output on
viPrintf(vi, "INIT:CONT ON\n");	// Begins the	step sweep operation
	// Print user	information

printf("The signal generator is in step sweep mode. The frequency range					is\n");
printf("500 to 800 mHz. There is a .5 sec dwell time at each 30 mHz					step.\n");
printf("\n");		// Prints	a	carriage return/line feed
viPrintf(vi,	"OUTP:STAT OFF\n");	// Turns	the RF output off
printf("Press	the front panel Local key to return			the\n");

printf("signal generator to manual operation.\n");

// Closes the sessions

printf("\n");

viClose(vi);

viClose(defaultRM);

}

Generating a Swept Signal Using VISA and Visual C++

This example sets up the signal generator for a frequency sweep from 1 to 2 GHz with 101 points

84 Agilent N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide